Submitted by admin on Thu, 04/24/2014 - 20:02
definition:
The action or process of fertilizing an egg or a female animal or plant;The action or process of applying a fertilizer to soil or land.
sentence:
The embryos of all sexually reproducing organisms develop from a single cell, formed by the fusion of a male and a female gamete at fertilization.
The effect of rootstock on wine quality is probably no greater than that of other factors such as soil, climate, fertilization, and irrigation.
difficulty:
medium
toefl frequency:
2